HDPE Ball Valve

Why Choose Us

Excellent Product Quality

High density polyethylene (HDPE) fittings and ball valves which are widely used in domestic gas industry with a high market reputation, also exported to Europe, Australia, Middle East, Asia and other countries.

Rich Experience In Production

We are a fully-fledged ISO certified company with more than 10 years' experience in manufacturing, with full lines of products, innovative R&D team, Ningbo Hengyuan are keen to be your one-stop factory for HDPE fittings, ball valves and other special requirement.

After-Sales Service

Since its establishment, our company has been adhering to the scientific outlook on development, technology research.

Competitive Advantage

Adhering to the concept of a high starting point and high investment, Hengyuan Precision introduced more than 40 Haitian large-scale injection molding machines, built a first-class servo system and introduced advanced manipulator equipment.

Standard Ball Valve

Injection moulded, long spigot end, black HDPE100 material, quarter turn valve (ball), SDR

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Single Purge Ball Valve

Injection moulded, long spigot end, black HDPE100 material, quarter turn valve (ball), SDR

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Double Purge Ball Valve

Injection moulded, long spigot end, black HDPE100 material, quarter turn valve (ball), SDR

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Parts of a HDPE Ball Valve

Valve housing
All internal components of a ball valve are contained inside the valve housing or the body. Its primary function is to provide a secure and sealed enclosure for the ball, ensuring that the flow of fluids through the valve can be precisely controlled. The housing typically features inlet and outlet ports, allowing for the connection of pipes or pipelines. It is made of a hard and rigid metal, thermoplastic, or thermoplastic-lined metal that protects the components of the ball valve. This robust construction ensures the reliable operation and longevity of ball valves in various industrial applications.

Ball
The ball is a sphere that has a hole in its center. The hole in its center is called the bore. The bore serves as the flow opening of the fluid when the cross-section of the fluid flow path and the bore is coplanar. Otherwise, the flow is throttled. A ball valve may have a solid ball or a hollow ball. A solid ball has a constant opening diameter throughout its structure, which helps the fluid to smoothly flow at a constant velocity. A hollow ball, on the other hand, has a hollow internal structure, and the space inside it allows more fluid to pass through the valve. However, the larger space creates turbulence and high velocities. A hollow ball is lighter and less expensive compared to a solid ball.

Shaft
The shaft connects the ball to the control mechanism that rotates the ball. When the shaft is turned, it either aligns the ball with the valve's flow path to permit the flow of fluids or positions the ball perpendicular to the flow path to block it completely. The shaft has seals such as O-rings and packing rings to seal the shaft and the bonnet to avoid leakage of the fluid. The shaft's design and construction must be robust to withstand the pressure and temperature conditions of the system, ensuring reliable and efficient operation. The shaft may be manually operated by a lever or a handwheel or operated by an electric, pneumatic, or hydraulic actuation.

Bonnet
The bonnet is an extension of the valve housing that contains and protects the shaft and its packing, which is important in high-pressure and high-temperature applications. It may be welded or bolted to the body. It is also made of hard metal and it covers the opening made from connecting the shaft to the external control mechanism. The bonnet can be removable or integral to the valve body, depending on the valve design.

Seat
Ball valves have two seats, typically made of soft materials like PTFE (Teflon) or elastomers. These seats form a tight seal around the ball when the valve is in the closed position. They prevent leakage by creating a secure barrier between the ball and the valve body. The upstream seat seals against pressure, while the downstream seat seals against leakage to the atmosphere.

Electric Actuator
Electric actuators, also known as motorized actuators, are a method for remotely manipulating ball valves and are used for applications where manual operation of the valve is not possible. The mechanism of an electric actuator can be quarter turn or multi-turn depending on its design. Quarter turn actuators are used for valves that can be completely open or completely closed while multi-turn actuators perform more than one turn and multiple rotations.

The heart of an electric actuator is its electric motor, which is connected to a gear drive that is available with different torque ranges. The gear drive is connected to an output drive that is connected to the valve. Each of the components are housed in a tightly sealed, waterproof enclosure. The operation of an electric actuator is controlled remotely and can have cycle times and duty cycles and include other features to enhance its performance. Additionally, electric actuators can have a network connection or a databus.

Advantages of HDPE Ball Valve

Quick and Easy Operation: Ball valves have a simple design, typically consisting of a handle or lever and a spherical ball with a hole through it. This design allows for quick and easy operation, making them ideal for applications where rapid shut-off or control is required.

Reliable Shut-Off: Ball valves provide a reliable and tight shut-off when fully closed. The spherical ball with a hole aligns perfectly with the flow path when closed, minimizing the chances of leakage.

Minimal Pressure Drop: Ball valves typically have a low pressure drop across the valve when fully open. This ensures that the flow of fluid or gas through the valve is not significantly restricted, which is important in high-flow applications.

Durability: Ball valves are generally durable and can withstand a wide range of temperatures and pressures. They are often made from materials such as stainless steel, brass, or PVC, which resist corrosion and wear.

Versatility: Ball valves are suitable for a wide range of fluids and gases, including water, oil, gas, steam, and corrosive chemicals. They are commonly used in industries such as petrochemical, water treatment, HVAC, and pharmaceuticals.

Low Maintenance: Ball valves require minimal maintenance because of their simple design. With proper installation and operation, they can last for a long time without needing frequent repairs or replacement.

Bi-Directional Flow: Ball valves are typically designed for bi-directional flow, meaning they can be used for both forward and reverse flow applications.

Precision Control: Some ball valves are designed for precise flow control by using a V-port or characterized ball. These specialized ball valves are used in applications where accurate control of flow rates is critical.

Reduced Friction: Ball valves have low friction compared to other types of valves, such as globe valves. This can result in less wear and energy savings in some applications.

Fire-Safe Design: Certain ball valve designs incorporate fire-safe features, making them suitable for use in fire protection systems and other critical applications.

Functions of Ball Valves

01/

Control flow: They are used to control the flow of fluid through a piping system. By rotating the ball within the valve body, the operator can allow fluid to pass through the valve or block the flow of fluid completely.

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Durability: Ball valves are known for their durability and long lifespan. They are made of sturdy materials that can withstand high pressures and temperatures, making them suitable for a variety of applications.

03/

Sealing: The seats, which are typically made of materials that are resistant to wear and tear provide a tight seal when the valve is closed, preventing fluid from leaking through the valve.

04/

Low torque: They require less torque operation than other types of valves. This makes them easier to operate manually and reduces the amount of force required to open or close the valve.

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Reduced maintenance: Because ball valves are durable and have few moving parts, they require less maintenance than other types of valves. This reduces the cost and downtime associated with the ball valve parts maintenance and repair.

06/

Automation: Ball valves can be automated using electric, pneumatic, or hydraulic actuators. This allows for remote operation of the valve and can improve the efficiency and safety of the system.

What Is The Role Of The HDPE Ball Valve?

The HDPE Ball Valve has the advantages of simple structure, good sealing performance, small volume, light weight, low material consumption, small installation size, small driving torque, easy operation and quick opening and closing in a certain nominal size range. One of the fastest growing valve varieties. The use of ball valves is very extensive, the variety and quantity of use are still expanding, and the development of high temperature, high pressure, large diameter, high sealing, long life, excellent regulation performance and multi-valve function.

The HDPE Ball Valve mainly cuts off the flow, distributes the flow rate and changes the flow direction. The valve has many functions and can be used as a switch. The HDPE Ball Valve has an action of 90 degrees of rotation, the body of the plug is a sphere, with a circular through hole or passage through its axis. The HDPE Ball Valve is mainly used in the pipeline to cut, distribute and change the flow direction of the medium. It only needs to be rotated 90 degrees and the torque can be closed tightly. Ball valves are most suitable for use as switches and shut-off valves, V-type ball valves. In addition to paying attention to the pipeline parameters, electric valves should pay special attention to the environmental conditions used. Since the electric device in the electric valve is an electromechanical device, its use state is greatly affected by its use environment.

How To Choose a Type of HDPE Ball Valve?

When it comes to choosing the right ball valve for your specific application, there are a few critical considerations to be taken. First, carefully match the valve size to your pipeline’s requirements, and double-check that the end connections align seamlessly with your existing system. Material selection is equally important. Evaluate the compatibility of the valve’s construction materials with the fluid your system handles and the environmental conditions it faces. Assess pressure and temperature ratings to guarantee that your chosen ball valve can withstand the operating conditions within your application. Consider your flow control needs. Your choice of ball valve type—whether it’s a full bore or V-port—should align with your specific process requirements. Lastly, think about the actuation mechanism. Manual, electric, or pneumatic actuation options are available, so decide based on your system’s level of automation and ease of operation.

How To Choose A HDPE Ball Valve?

Application Considerations:

Fluid Compatibility: The first step in choosing a ball valve is to determine the compatibility between the valve material and the fluid being handled. Certain fluids may require specific materials such as stainless steel for corrosive chemicals or brass for potable water applications.

Pressure and Temperature: Evaluate the operating pressure and temperature conditions to ensure the selected ball valve can handle the required parameters without any risk of failure or leakage.

Flow Control: Consider the flow characteristics of the fluid (such as on/off or throttling) to determine the appropriate design features of the ball valve, including the port size and flow capacity.

Valve Design:

Full Port or Standard Port: Decide whether a full port or standard port ball valve is suitable for the application. Full port valves have a larger ball opening, providing minimal flow restriction, while standard port valves have slightly reduced flow capacity but are more compact and cost-effective.

Manual or Actuated: Determine if a manual valve operated by hand or an actuated valve controlled by an automated system is required. Actuated valves are suitable for applications where remote operation and precise control are necessary.

One-Piece, Two-Piece, or Three-Piece: Consider the valve construction options based on maintenance requirements and potential repairs. One-piece valves are compact and economical, while two-piece and three-piece valves allow for easier maintenance by disassembling the valve body.

Seal Material:

Seat Material: Choose the appropriate seat material based on the fluid compatibility, operating temperature, and pressure requirements. Common seat materials include PTFE (Teflon), RPTFE, or metal-to-metal seals for high-temperature and high-pressure applications.

Stem Seals: Evaluate the stem seal material to ensure it can withstand the operating conditions and provide reliable sealing, preventing any leakage.

End Connections: Consider the desired end connections such as threaded, flanged, or welded ends based on the piping system and installation requirements. Ensure compatibility between the ball valve's end connections and the existing system.

Certification And Standards: Check if the selected ball valve complies with industry standards and certifications, ensuring it meets the necessary safety and performance requirements. Common certifications include ISO, API, ANSI, and ASTM.

Our Factory

Manufacturer of high density polyethylene (HDPE) fittings and ball valves which are widely used in domestic gas industry with a high market reputation, also exported to Europe, Australia, Middle East, Asia and other countries. We are a fully-fledged ISO certified company with more than 10 years' experience in manufacturing, with full lines of products, innovative R&D team, Ningbo Hengyuan are keen to be your one-stop factory for HDPE fittings, ball valves and other special requirement.

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FAQ

Q: How much weight can HDPE hold?

A: It's for this reason that a 60-gram HDPE container can safely carry over a gallon of liquid or roughly eight pounds of weight.

Q: What are the primary applications of HDPE ball valves?

A: HDPE ball valves are widely used in water and wastewater distribution systems, natural gas distribution, mining, slurry transport, and industrial applications where corrosion resistance and durability are crucial.

Q: Why choose HDPE over other materials for ball valves?

A: HDPE offers excellent chemical resistance, abrasion resistance, and flexibility, making it suitable for a variety of harsh environments where traditional materials like metal might fail.

Q: What are the advantages of using HDPE ball valves in piping systems?

A: HDPE ball valves offer low friction, easy operation, zero leakage potential, and high resistance to impact, UV radiation, and chemicals. They also facilitate quick and efficient maintenance.

Q: How do HDPE ball valves compare to other types of valves?

A: Compared to gate valves, ball valves provide better shut-off and are less likely to jam. They are also generally more cost-effective than butterfly valves and offer a tighter seal than globe valves.

Q: Can HDPE ball valves be used for potable water applications?

A: Yes, HDPE ball valves are often used in potable water applications because they do not impart any taste or odor to the water and are non-toxic.

Q: What sizes do HDPE ball valves come in, and how is the sizing determined?

A: HDPE ball valves come in a range of NPS (National Pipe System) sizes, typically from 1/2 inch to 24 inches. Sizing is based on the nominal diameter of the connected pipeline and the flow requirements.

Q: What pressure ratings are available for HDPE ball valves?

A: HDPE ball valves are available in various pressure ratings, typically ranging from Class 150 to Class 1500 (ANSI/ASME B16.34). The rating depends on the valve design, wall thickness, and material.

Q: Are HDPE ball valves suitable for high-temperature applications?

A: While HDPE is resistant to many chemicals, it has limited high-temperature tolerance. For high-temperature applications, special HDPE grades or alternative materials like PVDF may be more suitable.

Q: How do you install an HDPE ball valve?

A: Installation involves cutting the pipe squarely, chamfering the edges, and using a hot plate to heat the ends before inserting them into the valve body. Once aligned, apply pressure and allow the valve to cool and solidify.

Q: What maintenance is required for ball valve?

A: Ball valve maintenance steps. It is essential to follow a systematic approach to ball valve maintenance, including regular inspections, cleaning, lubrication, and testing to prevent problems before they occur. Regular cleanings: It is important to keep ball valves clean to extend their lifespan.

Q: Is there a correct way to install a ball valve?

A: Ball valves may be installed in vertical or horizontal pipe runs, they are bi-directional therefore flow direction is not critical, however the best practice is to set up the valve handle to point in the direction of flow whenever possible.

Q: How long does it take to replace a ball valve?

A: The best way to deal with bad valves is replacing them with modern quarter-turn ball valves. They rarely lock up, leak or wear out. Best of all, they take just an hour or so to install.

Q: How to unstick a ball valve?

A: Open the main shutoff valve to your home's water supply and turn it off. After that, check out the ball valve manually. By turning the valve's handle and opening and shutting it repeatedly, you can try to loosen it.

Q: What are the advantages of a ball valve?

A: Advantages of Ball Valves
Due to the size of the opening in the ball, ball valves are considered high recovery valves since they have a low-pressure drop and high flow capacity. There is little turbulence or resistance to fluid flow when the valve is fully open.

Q: Are there any certifications or standards that HDPE ball valves must meet?

A: HDPE ball valves should comply with relevant industry standards such as ASTM D2846 for HDPE pressure pipe and ISO 4427 for plastic piping components. Certification by organizations like NSF/ANSI may be required for potable water applications.

Q: What is the best material for a ball valve?

A: The most common materials for ball valve manufacture are carbon steel grades WCB and LCB for the body and stainless steel grade 316 or CF8M for the ball and shaft. In special applications the body can be made from stainless alloys in corrosive or low/high temperature applications.

Q: How do you replace an HDPE ball valve?

A: Replacement involves shutting off the flow, removing the old valve, preparing the pipe ends, and installing the new valve using the butt fusion process or mechanical connectors, depending on the system design.

Q: What are some best practices for operating HDPE ball valves?

A: Best practices include avoiding overtightening the handle, keeping the valve clean, checking for leaks regularly, and protecting the valve from physical damage during operation and transportation.

Q: Can HDPE ball valves be used in reverse flow applications?

A: HDPE ball valves can typically handle reverse flow, but it is not recommended as a standard practice because it can cause wear on the seat. If reverse flow is anticipated, a check valve should be installed downstream of the ball valve.

We're known as one of the most professional hdpe ball valve manufacturers and suppliers in China. Please feel free to buy customized hdpe ball valve made in China here from our factory. Contact us for free sample.

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